Try it Yourself: CSS Height / Width

CSS Height / Width

<!DOCTYPE html>
<html>
<head>
<style>
img {
  max-width: 100%;
  height: auto;
}
</style>
</head>
<body>

<img src="photo.jpg" alt="Mountain view">

</body>
</html>

<!DOCTYPE html>
<html>
<head>
<style>
img {
  max-width: 100%;
  height: auto;
}
</style>
</head>
<body>

<img src="photo.jpg" alt="Mountain view">

</body>
</html>